Public domain
Public Health Service Investigation Commission to the China-Burma Highway, Chefang Valley, China. Knee deep in mud. Ditches across the seepage area carry water direct to main drainage ditch
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit linePublic Health Service Investigation Commission to the China-Burma Highway, Chefang Valley, China. Knee deep in mud. Ditches across the seepage area carry water direct to main drainage ditch. 1939-01-01. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.